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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 411 · 40 questions
TalentJR

How to do it in your head (Biggest part first): Split the 3-digit number into hundreds, tens and ones. Multiply the hundreds and keep that number in your head. Multiply the tens and add, then multiply the ones and add.

NameDateTime takenScore ___ / 40
  1. 1.821 × 6 =
  2. 2.308 × 6 =
  3. 3.715 × 3 =
  4. 4.485 × 8 =
  5. 5.141 × 5 =
  6. 6.893 × 5 =
  7. 7.213 × 9 =
  8. 8.153 × 7 =
  9. 9.257 × 3 =
  10. 10.672 × 6 =
  11. 11.868 × 7 =
  12. 12.638 × 3 =
  13. 13.413 × 4 =
  14. 14.518 × 9 =
  15. 15.967 × 4 =
  16. 16.126 × 3 =
  17. 17.287 × 3 =
  18. 18.407 × 8 =
  19. 19.426 × 6 =
  20. 20.908 × 6 =
  21. 21.631 × 4 =
  22. 22.502 × 4 =
  23. 23.771 × 6 =
  24. 24.249 × 5 =
  25. 25.368 × 5 =
  26. 26.878 × 4 =
  27. 27.332 × 9 =
  28. 28.197 × 5 =
  29. 29.586 × 4 =
  30. 30.516 × 5 =
  31. 31.181 × 9 =
  32. 32.562 × 6 =
  33. 33.592 × 9 =
  34. 34.752 × 7 =
  35. 35.169 × 7 =
  36. 36.255 × 4 =
  37. 37.251 × 4 =
  38. 38.774 × 8 =
  39. 39.164 × 5 =
  40. 40.635 × 7 =

Answer key

  1. 4926
  2. 1848
  3. 2145
  4. 3880
  5. 705
  6. 4465
  7. 1917
  8. 1071
  9. 771
  10. 4032
  11. 6076
  12. 1914
  13. 1652
  14. 4662
  15. 3868
  16. 378
  17. 861
  18. 3256
  19. 2556
  20. 5448
  21. 2524
  22. 2008
  23. 4626
  24. 1245
  25. 1840
  26. 3512
  27. 2988
  28. 985
  29. 2344
  30. 2580
  31. 1629
  32. 3372
  33. 5328
  34. 5264
  35. 1183
  36. 1020
  37. 1004
  38. 6192
  39. 820
  40. 4445

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